Ask about the tracking stack first
"Is the Conversions API running server-side, and how are you deduplicating events against the browser pixel?" An agency doing real work answers immediately. One that doesn't will reframe the question. Tracking rigour predicts account quality better than any case study, because everything downstream depends on it.
Ask how many creatives ship per month
Creative is the primary lever on cost per acquisition now that targeting is largely automated. An agency shipping three ads a month and blaming the algorithm is describing its own constraint. Fifteen to twenty new assets monthly is what a scaling account needs.
Ask what they'd stop doing
A good operator will tell you which channel or campaign they'd switch off. An agency whose fee scales with your spend has an obvious incentive not to — which is worth knowing before you choose a percentage-of-spend model over a flat fee.
Where we fit
₹51 Cr+ managed, 250+ brands, flat monthly fees rather than a percentage of spend, and all accounts in the client's name. We publish what we'd check if we were you, including the questions above — and we'd rather lose a pitch to them than win one without them.